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Vulnerability · Published Sep 15, 2020 · Assigned by redhat

CVE-2020-14331

Medium 6.6

In plain English

A medium-severity out-of-bounds write in Linux Kernel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)6.6Medium
Exploit odds (30 days)0.6%top 53.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A flaw was found in the Linux kernel’s implementation of the invert video code on VGA consoles when a local attacker attempts to resize the console, calling an ioctl VT_RESIZE, which causes an out-of-bounds write to occur. This flaw allows a local user with access to the VGA console to crash the system, potentially escalating their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.7.17-1DEBIAN-CVE-2020-14331
Debian:13linux5.7.17-1DEBIAN-CVE-2020-14331
Debian:14linux5.7.17-1DEBIAN-CVE-2020-14331
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2020-14331
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2020-14331
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2020-14331
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2020-14331

Affected products (as reported)

VendorProductVersions
n/a Linux Kernel All versions of the Linux kernel

Weakness: CWE-787

References